Physics · 2023
JEE Main · 11 April 2023, Shift 1 · Q57
The length of a wire becomes l_1 and l_2 when 100 N and 120 N tensions are applied respectively. If 10 l_2=11 l_1, the natural length of wire will be…
The length of a wire becomes $\displaystyle l_1$ and $\displaystyle l_2$ when $\displaystyle 100$ N and $\displaystyle 120$ N tensions are applied respectively. If $\displaystyle 10 l_2=11 l_1$, the natural length of wire will be $\displaystyle \frac{1}{x} l_1$. Here the value of $\displaystyle x$ is $\displaystyle \_\_\_\_$
Official answer
From NTA’s final answer key for this paper.
2
More from Mechanical Properties of Solids
- The length of a light string is 1.4 m when the tension on it is 5 N. If the tension increases to 7 N, the length of the string is 1.56 m. The…2025
- Two slabs with square cross section of different materials (1,2) with equal sides (l) and thickness d_1 and d_2 such that d_2=2 d_1 and l>d_2.…2025
- A massless spring gets elongated by amount x_1 under a tension of 5 N. Its elongation is x_2 under the tension of 7 N. For the elongation of (5 x_1-2…2025
- A metal block of mass m is suspended from a rigid support through a metal wire of diameter 14 mm. The tensile stress developed in the wire under…2023
- With rise in temperature, the Young's modulus of elasticity:2024
- A cube has side length 5 cm and modulus of rigidity 10^5 N / m^2. The displacement produced by a force of 10 N in the upper face of cube is ____ mm.2026
- A lift of mass 1600 kg is supported by thick iron wire. If the maximum stress which the wire can withstand is 4 × 10^8 N / m^2 and its radius is 4…2026
- A force is applied to a steel wire 'A', rigidly clamped at one end. As a result elongation in the wire is 0.2 mm. If same force is applied to another…2023
JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.